Slide 1

Die casting mold steels
Elevated temperature
strength

High strength
・high tough
Soaking
General steel

H13

DH31-S
DH21

DHA1

DH31-EX
ESR + Soaking
+ Reinforced forging

DHA
-WORLD DHA1-A
(H13-ESR)

0.4C-1Si-5Cr-1Mo-1V
High thermal conductivity

DH2F
Pre-hardened

DHA-Thermo
HDS-1

Toughness

Daido’s die casting mold steels
Toughness in ST direction
(Relative index)

Fine grains， Clean
Uniformity， Isotropy

Fine carbides

ESR

Intensified
forging by
7000t press

Homogenized

H13

DHA1

DHA1

DHA1-A


Slide 2

Die casting mold steels
Elevated temperature
strength

High strength
・high tough
Soaking
General steel

H13

DH31-S
DH21

DHA1

DH31-EX
ESR + Soaking
+ Reinforced forging

DHA
-WORLD DHA1-A
(H13-ESR)

0.4C-1Si-5Cr-1Mo-1V
High thermal conductivity

DH2F
Pre-hardened

DHA-Thermo
HDS-1

Toughness

Daido’s die casting mold steels
Toughness in ST direction
(Relative index)

Fine grains， Clean
Uniformity， Isotropy

Fine carbides

ESR

Intensified
forging by
7000t press

Homogenized

H13

DHA1

DHA1

DHA1-A